萬聖節前夕(英語：Halloween，爲“All Hallows' Eve”的縮寫)，在每年的10月31日，是西方世界的傳統節日，主要流行於撒克遜人後裔雲集的美國、不列顛羣島、澳大利亞、加拿大和新西蘭等西方國家。當晚小孩會穿上化妝服，戴上面具，挨家挨戶收集糖果等。
萬聖夜是諸聖節(All Hallows' Day)的前夜。其英語名稱中的“Hallow”源於中古英語的“halwen”，與“holy”詞源很接近，在蘇格蘭和加拿大的某些區域，諸聖節仍然被稱爲“Allhallowmas”，意思是在紀念所有聖人(All Hallows)的那一天要舉行的彌撒(Mass)。
萬聖節通常與靈異的事物聯繫起來。歐洲傳統上認爲萬聖夜是鬼怪世界最接近人間的時間，這傳說與東亞的中元節與盂蘭節類似。美國明尼蘇達州的阿諾卡(Anoka)號稱是“世界萬聖節之都”，每年都舉行大型的巡遊慶祝。
《Monster Mash》
- Bobby Pickett
I was working in the lab, late one night
When my eyes beheld an eerie sight
For my monster from his slab, began to rise
And suddenly to my surprise
He did the mash, he did the monster mash
The monster mash, it was a graveyard smash
He did the mash, it caught on in a flash
He did the mash, he did the monster mash
From my laboratory in the castle east
To the master bedroom where the vampires feast
The ghouls all came from their humble abodes
To get a jolt from my electrodes
They did the mash, they did the monster mash
The monster mash, it was a graveyard smash
They did the mash, it caught on in a flash
They did the mash, they did the monster mash
The zombies were having fun
The party had just begun
The guests included Wolfman,
Dracula, and his son
The scene was rockin', all were digging the sounds
Igor on chains, backed by his baying hounds
The coffin-bangers were about to arrive
With their vocal group, 'The Crypt-Kicker Five'
They played the mash, they played the monster mash
The monster mash, it was a graveyard smash
They played the mash, it caught on in a flash
They played the mash, they played the monster mash
Out from his coffin, Drac's voice did ring
Seems he was troubled by just one thing
Opened the lid and shook his fist and said
"Whatever happened to my Transylvania Twist? "
It's now the mash, it's now the monster mash
The monster mash, it was graveyard smash
It's now the mash, it caught on in a flash
It's now the mash, it's now the monster mash
Now everything's cool, Drac's a part of the band
And my Monster Mash is the hit of the land
For you, the living, this mash was meant too
When you get to my door, tell them Boris sent you
Then you can mash, then you can monster mash
The monster mash, and do my graveyard smash
Then you can mash, you'll catch on in a flash
Then you can mash, then you can monster mash
